ZINN & FORMAN

Oil // district 3 // lease#19568

op: VAST OIL TX OPERATING LLC

cum_oil

287 BBL

cum_gas

0 MCF

wells

1

production

1993-01 — 2026-03

peak_month

1993-05

-- production_history

cum_oil: 287 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

43 BBL/mo

Di (annual)

192.8%

b-factor

0.0

EUR

261 BBL

R-squared

0.618

type

exponential

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
10SUN EXPL. & PROD. CO.-LAFAYETTE77,8532007-07-03
EOF // data source: Texas Railroad Commission // 2026